FU (months)

N

n

Survival rate

95% CI

1

223

6

0.973 ± 0.011

0.952 - 0.995

5

16

1

0.912 ± 0.060

0.802 - 1.000

6

14

1

0.847 ± 0.084

0.698 - 1.000

10

7

1

0.726 ± 0.133

0.507 - 1.000

12

5

3

0.290 ± 0.168

0.094 - 0.901